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Your current portfolio is very good and I do not think you should change it.
I would not recommend you to interfere with it but if you have already amde your mind then you should go ahead. I have heard about Titan coin, they had an IEO, not sure if it was successful.
Think twice before investing.
This portfolio looks good, 4 good coins, Bitcoin and Ethereum should be included in every portfolio! I have BNB and EOS too, this portfolio is like mine, I just have more coins. I wouldn't trade any of my coins for some other coins, if I wish some other coins I will invest more money or I will try to find a way to earn some, if it's possible. I don't like to sell my coins!
When you think about it every portfolio is good, as long as you work on that portfolio and add more.